The difference does not reveal the cause
If a greenhouse sensor shows an unusual value, it should first be decided whether a real change in state or a measurement problem to check is visible. There may be a different reaction to the two. The new data should not be considered as an error automatically, but it is also not good to become a sound basis for all interventions without control. In order to be operational, there should be a specific way to check. The operator is aware of the time, location and associated system status of the data. M Hoogendoorn Sensors and Van der Hoeven The operational approach will provide a professional background for linking data and maintenance.
The condition of comparison should be the same
When comparing two measurements, the difference between place, time and test environment shall be assessed. Different plant stocks or the close effect of a plant can cause other data on its own. The method of inspection shall be determined on the basis of the measuring instrument and the professional task. The point for the customer is to verify the claim resulting from the comparison. The number at another point does not necessarily prove the first sensor's error. The test sheet therefore also contains the test conditions in addition to the values. The correct comparison is trying to assess the same conditions, not just adding two displays together.
Calibration and maintenance are asset-dependent
The control, cleaning and calibration functions of the measuring instrument shall be managed in accordance with the specific manufacturer specification. Not all sensors can be checked with the same procedure and frequency. The operating plan should therefore include the equipment identifier, the necessary task and the executive responsible. The results of the intervention should be recorded by date. If a replacement is made, the installation site and the programme connection shall be checked, not only the new component type. The history of the system data is preserved. When interpreting the later graph, it can be seen if the measuring device or its adjustment has changed during the period considered.
Undetectable data should not be undetected
The test missing, obsolete or under control may be indicated separately on the interface and in the log. If these appear in the same way as the sure data, the subsequent decision may be misleading. The system experts shall be consulted on how the operation is to be performed in case of uncertain signals. The boundaries of the intervention and the notification arrangements shall be understood by the producer. The aim is not to suspend the entire automation for every minor deviation, but to describe the weight of the event and the response. A well-managed error indicator also shows what the next verifiable step is.
The operating order that can be learned from the real event
The significant data difference should be recorded together with the control and action taken. The next shift or service shows what happened and what the decision was based on. If the same problem is repeated, the record supports the examination of the cause. Before changing the system, it is also appropriate to preserve the old state so that the consequences can be assessed later. The sensor control is therefore not an isolated component task. The location of the measurement, the device, the data link and the cultivation operation are examined together. This approach helps to separate actual climate change from the fault of the instrument or the relationship.
Questions to reconcile the project
- What is the same condition of comparison that separates the measurement error from the local deviation?
- Which manufacturer control system is included in that device?
- How is the uncertainty data marked and managed in the regulation and log?
Professional background
The related international system solutions are provided by these primary manufacturers and execution sites. The decision aspects of the project shall be interpreted independently by the article; the specific size and content of the undertaking shall be clarified on the basis of the investment data.
development project preparation
The structure, engineering and on-site installation of the greenhouse is a coordinated working process. Learn the service area and compare the tasks of the planned investment.